GSC 4G63 OEM Replacement Valve Spring Seats (1004) StopTech APR carbon fiber radiator cooling

APR carbon fiber radiator cooling plates for BRZ/FRS/86 reduce under-hood temps and channel air flow directly to the radiator

Includes a block-off bolt for the stock head feed location

• Digital Stepper Motor

• PT5558 Ball Bearing Turbo

47508 *Discontinued* Rear

GSC 4G63 OEM Replacement Valve Spring Seats (1004) StopTech APR carbon fiber radiator coolingGSC Power Division OEM replacement valve spring seat set for the 4G63 Evo and 1G 2G DSM. Perfect for replacing old seats when upgrading to a high performance spring kit like the GSC Beehives. Same thickness as OEM, so no spring pressure change when using these. Sold as a set of 16. Vehicle Fitment: Mitsubishi 4G63 1992 2006 Evolution I IX 1990 1999 Eclipse GST GSX 1990 1998 Talon TSi 1990 1994 Laser RS 1991 1992 Galant VR4 Includes: (16) Valve Spring